Improved fagot foe beam



atten `tette atnt ffice.

trEORGE WALTERS ANDTHOMAS SHAFFER, OF PHfENIXVILLE, PENNSYL- l VANIA.

Lettera Patent No. 75,712, dated March 17, 1868.

IMPROVED FAGOT"E`0R BEAM.

TO ALL WHOM I'ly MAY OONCERN:

Be it known that we, vGEORGE WALTERS and THOMAS SHAFFER, of Phoenixville, Chester county, Pennsylvania, have inventedl en Improved Pile or Fagot for Wrought-Iron Beams or Girders; and we do hereby declare the following to be a full, clear, and ex'nct descriptionof the same.

Our invention consists of a. pile or fagot, (for wrought-iron beams or girders,) composed of a solid bar or bars, having u rib confined between other bars by riveting the latter to intervening bars, which are, together, lessl in thicknoss thanetlie said-rib, all us described hereafter, the several parts composing the pile being thus held p together while subjected to hout in the furnace, and forming, when rolled, a compact and rigid beam or girder.

In order to enable others skilled in the art to make and apply ourinvention, we will now proceed to describe the mode ofcnrrying the saine into effect, reference being had to the accompanying drawing, which forms a part ot' this specification, and in which- Y Figure 1 is a transverse section of our improved pile or fagot for wrought-iron beams or girders.

Figure 2, o. side view of part of the pile.

Figures 3, `4f, und 5, sections of piles for beams of different forms, and

Figure 6 a section representing a modification of our improvement. A

On reference to figs. 1 und 2, A and A represent two bars, lon one face of each of which, midway between its opposite edges, is formed a rib, a, the ribs a of the `two bars being confined by and between the two bars b and b', between which intervene the two bars c and d, the arrangement of the several bars in respect to each other being clearly indicated in fig. 1.

'lhe thickness of the two bars c and d combined is somewhat less than the width of the rib, so that, on securing thc bars Z1 b, c, und cl together by rivets, e e, the outer bars, b b', will have a griping'effect. on the ribs, :ind thus hold the whole ofthe bars together in a pilewhile it is being subjected to a welding-heat in a furnace prior to its conversion into nn H-beam bythe action Vof suitable rolls. In fig. 3 the bars are arranged und secured accordi-ng to our invention for a pile to be convcrtednto a T-benm. In fig. 4 the pile is arranged for n crneiforln beam or gil-der, and in lig. 'for an L -beam.

It is not essential that'the web ofthe beam should be composed ofthe exact number of bars shown, as there may bc two or more griping-bars, b or b', on each side'ot' the rib a, and any desired number of intervening bars, c di: or. the web for beams of great depth may be vcomposed of a number of bars, arranged and secured togetherl :rnd io the rib a in the manner clearly illustrated by fig. 6, in any of the cases the beam, when rolled, being of the most Solid and rigid character.

Wc do not desire to claim broadly a pile composed'of a bur having a rib varranged between bars composing the web .for a beam or girder; but

We claim as our invent-ion, land desire to secure by Letters Patent- A -pile or fngot, (foi"iiroiiglrtiron beams or girders,) consisting of a solid bur or bars, A, having a rib, a, gripcrl by and between bars b and b', secured by transverse `rivets to intervening bars, which are, together, less in thickness than the said rib a, all as set forth, for the purpose specified. I

In testimony whereof, we have signed our names to this specification in the presence of two subscribing 'IUICSSCS.

GEORGE WALTERS,

THOMAS SHAFFER. Witnesses:

P. G. CAREY,

E. L. CAswELL. 

